Audi A6, Buick Regal, Passat and other mid-to-high-end cars, Haier, Galanz, Gree and other famous home appliances, wearing domestic electroplated zinc cold-rolled plate outerwear, all from Baosteel. As the only large-scale steel plant with electro-galvanizing units in China, Baosteel Branch's cold rolling mill reached the world's leading level when the first electro-galvanizing unit was put into production for 17 years.
The electroplating zinc product has high technical content and complicated production process. At present, the comprehensive raw material rate of the international first-class electro-galvanized automobile outer panel is only about 75%. In the process of producing thick-plated O5 plates, technical problems such as conductive roll marks and dendrite defects often still plagued many foreign advanced steel companies. The cold rolling mill set up an expert research team to focus on the control improvement of surface defects. At the end of 2003, the cold rolling mill started with equipment and technology and completely relied on its own strength to overcome this problem. At the same time, the problem of dendritic defects has been solved under the efforts of the cold rolling mill, and many control indicators of product quality have reached the world's leading level. Last year, the average index of integrated sheet metallization of galvanized automobile exterior sheets in cold rolling mills exceeded 75% for the first time. At the same time as the breakthrough in quality research, the output has also increased year by year. At present, the annual output of two electro-galvanizing units has exceeded 500,000 tons.
Electro-galvanized products are mainly divided into two categories: automotive panels and home appliances panels. Among the products produced by Baosteel's electro-galvanizing unit, the proportion of double-high products such as electro-galvanized automobile O5 board, home appliance board and anti-fingerprint board is as high as 60%. For a long time, Baosteel has been committed to the development of electroplated zinc double high products. In 1996, the electroplated zinc unit produced the first fingerprint-resistant board, forcing the import of products to drop sharply. In 2001, Baosteel began to supply bulk quantities to Fiat, Italy. Last year, Baosteel has successfully developed a chromium-free and anti-fingerprint board; at present, Baosteel has supplied large quantities of electro-galvanized automotive sheets to Shanghai General Motors. Baosteel's electro-galvanized products have been serialized and scaled, covering almost all series of electro-galvanized products.
The electroplating zinc product has high technical content and complicated production process. At present, the comprehensive raw material rate of the international first-class electro-galvanized automobile outer panel is only about 75%. In the process of producing thick-plated O5 plates, technical problems such as conductive roll marks and dendrite defects often still plagued many foreign advanced steel companies. The cold rolling mill set up an expert research team to focus on the control improvement of surface defects. At the end of 2003, the cold rolling mill started with equipment and technology and completely relied on its own strength to overcome this problem. At the same time, the problem of dendritic defects has been solved under the efforts of the cold rolling mill, and many control indicators of product quality have reached the world's leading level. Last year, the average index of integrated sheet metallization of galvanized automobile exterior sheets in cold rolling mills exceeded 75% for the first time. At the same time as the breakthrough in quality research, the output has also increased year by year. At present, the annual output of two electro-galvanizing units has exceeded 500,000 tons.
Electro-galvanized products are mainly divided into two categories: automotive panels and home appliances panels. Among the products produced by Baosteel's electro-galvanizing unit, the proportion of double-high products such as electro-galvanized automobile O5 board, home appliance board and anti-fingerprint board is as high as 60%. For a long time, Baosteel has been committed to the development of electroplated zinc double high products. In 1996, the electroplated zinc unit produced the first fingerprint-resistant board, forcing the import of products to drop sharply. In 2001, Baosteel began to supply bulk quantities to Fiat, Italy. Last year, Baosteel has successfully developed a chromium-free and anti-fingerprint board; at present, Baosteel has supplied large quantities of electro-galvanized automotive sheets to Shanghai General Motors. Baosteel's electro-galvanized products have been serialized and scaled, covering almost all series of electro-galvanized products.
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